Interstate McBee 5237473 Series 60 DDEC 2/3/4 11.1/12.7/14.0L "Stage 4" InjectorThe 7473 injector is a great option for those looking for serious power without sacrificing drivability and road manners. This injector was a factory offering in the 825 hp marine 14. 0L Detroit. Since this model has the newer style 9 hole nozzle providing a finer fuel atomization than a comparable 8 hole injector, this is a great choice for most Series 60 enthusiasts looking for a clean burn that works well for 1000+ hp and is the biggest OEM N2 9